How severe is CVE-2022-39328?

CVE-2022-39328 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-39328 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39328?

CVE-2022-39328 affects Grafana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-39328?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-39328 published?

CVE-2022-39328 was published on 2022-11-08 and last updated on 2026-06-17.

CVE-2022-39328

CVE-2022-39328 is a critical-severity vulnerability in Grafana with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Grafana
Published: 2022-11-08
Last modified: 2026-06-17

Description

Grafana is an open-source platform for monitoring and observability. Versions starting with 9.2.0 and less than 9.2.4 contain a race condition in the authentication middlewares logic which may allow an unauthenticated user to query an administration endpoint under heavy load. This issue is patched in 9.2.4. There are no known workarounds.

Frequently asked questions

What is CVE-2022-39328?: Grafana is an open-source platform for monitoring and observability. Versions starting with 9.2.0 and less than 9.2.4 contain a race condition in the authentication middlewares logic which may allow an unauthenticated user to query an administration endpoint under heavy load. This issue is patched in 9.2.4. There are no known workarounds.
How severe is CVE-2022-39328?: CVE-2022-39328 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-39328 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-39328?: CVE-2022-39328 affects Grafana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-39328?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-39328 published?: CVE-2022-39328 was published on 2022-11-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*

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